Home / 74,179.66-102,372.03-42,358.78

Finding the Fourth Proportional to 74,179.66, 102,372.03 and 42,358.78

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Solution

The fourth proportional to 74,179.66, 102,372.03 and 42,358.78 is: 58,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.66 : 102,372.03 = 42,358.78 : x
  2. Step 2: Convert to fraction form
    74,179.66/102,372.03 = 42,358.78/x
  3. Step 3: Cross multiply
    74,179.66x = 102,372.03 × 42,358.78
  4. Step 4: Simplify right side
    74,179.66x = 4,336,354,296.92
  5. Step 5: Solve for x
    x = 4,336,354,296.92/74,179.66
  6. Step 6: Final answer
    x = 58,457.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.